390892 has 12 divisors (see below), whose sum is σ = 693280. Its totient is φ = 192816.

The previous prime is 390889. The next prime is 390893. The reversal of 390892 is 298093.

It is a happy number.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (390893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 303 + ... + 934.

2³⁹⁰⁸⁹² is an apocalyptic number.

It is an amenable number.

390892 is a deficient number, since it is larger than the sum of its proper divisors (302388).

390892 is a wasteful number, since it uses less digits than its factorization.

390892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1320 (or 1318 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 390892 is about 625.2135635125. The cubic root of 390892 is about 73.1170948671.

The spelling of 390892 in words is "three hundred ninety thousand, eight hundred ninety-two".